* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

#map {
    width: 100vh;
    height: 100vh;
}

.btn {
    position: absolute;
    top: 10px;
    left: 50px;
}

* {
    padding: 0;
    margin: 0;
    font-size: 14px;
    font-family: '微软雅黑';
}

html,
body {
    width: 100vw;
    height: 100vh;
}

#map1 {
    position: absolute;
    left: 0;
    width: 768px;
    height: 729px;
}

#map2 {
    position: absolute;
    left: 50%;
    width: 768px;
    height: 729px;
}

.crs-tip {
    position: absolute;
    top: 20px;
    background-color: #000000ab;
    padding: 5px;
    border-radius: 5px;
    color: #fff;
}

.map-left {
    left: 25%;
    transform: translateX(-25%);
}

.map-right {
    left: 75%;
    transform: translateX(-25%);
}